After Lois (Erica Durance) tries on lipstick made with red kryptonite, she becomes overwhelmed with desire for Clark (Tom Welling) and makes her move. The two share a kiss, transferring the red kryptonite to Clark and his inhibitions immediately shut down causing "bad-Clark" to emerge.

Fueled by the red rock, Clark decides to break up Lex (Michael Rosenbaum) and Lana's (Kristin Kreuk) wedding dinner and kidnap the bride-to-be.